Electric Charges & Fields | Electric Charge All the best! 1. Which one of the following is the unit of electric charge? coulomb newton volt coulomb/volt None 2. The dimensional formula of electric charge is- A. [M0L0T1A1] B. [M0L0T-1A1] C. [M0L0T1A-1] D. [M0L0T-1A-1] Option (A) Option (B) Option (C) Option (D) None 3. Which of the following is NOT a true statement? Charge is a scalar quantity. The dimensional formula of electric charge is [Q]. The magnitude of charge on a body does not vary with its speed. Charge on a body is conserved. None 4. The charge on an electron was calculated by- Faraday J.J. Thomson Millikan Einstein None 5. A system contains 6 charges +1 μC, +2 μC, -3 μC, +4 μC, -5 μC and +6 μC. The total charge on the system is- Zero +2 μC -5 μC +5 μC None 6. The number of electrons present in 2 coulomb of charge are- A. 1.25 x 1017 B. 1.25 x 1019 C. 6.25 x 1018 D. 6.25 x 1019 Option (A) Option (B) Option (C) Option (D) None 7. One coulomb charge is equivalent to charge on how many number of protons? A. 6.25 x 1018 B. 7.5 x 1018 C. 8.25 x 1020 D. 9 x 1020 Option (A) Option (B) Option (C) Option (D) None 8. Find the number of electrons that should be removed from a coin so that it acquires a charge of 10-6 C. A. 6.25 x 1011 B. 1.6 x 106 C. 1.6 x 10-19 D. 6.25 x 1012 Option (A) Option (B) Option (C) Option (D) None 9. Which is bigger- one coulomb or charge on an electron? One coulomb Charge on an electron Both are same None of these None 10. Quantization of charge implies- charge cannot be destroyed charge exists on particles there is a minimum permissible charge on a particle charge, which is a fraction of a coulomb is not possible None 1 out of 10 Time's up
